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Multiplicatively closed set

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of prime ideals. In particular, the complement of a prime ideal is both saturated and multiplicatively closed.
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The intersection of a family of multiplicative sets is a multiplicative set.
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is both saturated and multiplicatively closed if and only if
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The intersection of a family of saturated sets is saturated.
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Commutative algebra with a view toward algebraic geometry
108: 79: 51: 126: 94: 63: 538: 161:Multiplicative sets are important especially in 521: 42:such that the following two conditions hold: 146:under taking finite products, including the 150:1. Equivalently, a multiplicative set is a 528: 514: 443: 216:Examples of multiplicative sets include: 310:is prime if and only if its complement 539: 402:Kaplansky, p. 2, Theorem 2. 480: 288:, the multiplicative closure of the 425:Introduction to commutative algebra 396: 13: 14: 563: 375:Atiyah and Macdonald, p. 36. 484: 165:, where they are used to build 387: 378: 369: 1: 409: 296: 184:if it is closed under taking 500:. You can help Knowledge by 7: 453:University of Chicago Press 345: 320:is multiplicatively closed. 211: 188:: i.e., whenever a product 22:multiplicatively closed set 10: 568: 479: 552:Commutative algebra stubs 473:3rd ed., Springer, 2002. 362: 254:is an element of a ring; 222:set-theoretic complement 127:{\displaystyle x,y\in S} 428:, Addison-Wesley, 1969. 331:is the complement of a 95:{\displaystyle xy\in S} 496:-related article is a 352:Localization of a ring 306:of a commutative ring 231:in a commutative ring; 169:of commutative rings. 154:of the multiplicative 128: 96: 65: 64:{\displaystyle 1\in S} 393:Eisenbud, p. 59. 357:Right denominator set 129: 97: 66: 451:(Revised ed.), 286:Jordan–PĂłlya numbers 277: for an ideal 106: 77: 49: 547:Commutative algebra 494:commutative algebra 163:commutative algebra 384:Lang, p. 107. 124: 92: 61: 26:multiplicative set 509: 508: 449:Commutative rings 445:Kaplansky, Irving 440:, Springer, 1995. 266:non-zero-divisors 559: 530: 523: 516: 488: 481: 463: 403: 400: 394: 391: 385: 382: 376: 373: 319: 276: 249: 138:In other words, 133: 131: 130: 125: 101: 99: 98: 93: 70: 68: 67: 62: 18:abstract algebra 567: 566: 562: 561: 560: 558: 557: 556: 537: 536: 535: 534: 477: 420:I. G. Macdonald 412: 407: 406: 401: 397: 392: 388: 383: 379: 374: 370: 365: 348: 311: 299: 271: 235: 214: 196:, the elements 107: 104: 103: 78: 75: 74: 50: 47: 46: 12: 11: 5: 565: 555: 554: 549: 533: 532: 525: 518: 510: 507: 506: 489: 475: 474: 464: 441: 432:David Eisenbud 429: 411: 408: 405: 404: 395: 386: 377: 367: 366: 364: 361: 360: 359: 354: 347: 344: 343: 342: 339: 336: 321: 298: 295: 294: 293: 282: 269: 262: 255: 232: 213: 210: 136: 135: 123: 120: 117: 114: 111: 91: 88: 85: 82: 72: 60: 57: 54: 9: 6: 4: 3: 2: 564: 553: 550: 548: 545: 544: 542: 531: 526: 524: 519: 517: 512: 511: 505: 503: 499: 495: 490: 487: 483: 482: 478: 472: 468: 465: 462: 458: 454: 450: 446: 442: 439: 438: 433: 430: 427: 426: 421: 417: 414: 413: 399: 390: 381: 372: 368: 358: 355: 353: 350: 349: 340: 337: 334: 330: 326: 322: 318: 314: 309: 305: 301: 300: 291: 287: 283: 280: 275: 270: 267: 263: 260: 256: 253: 247: 243: 239: 233: 230: 227: 223: 219: 218: 217: 209: 207: 203: 199: 195: 191: 187: 183: 179: 175: 170: 168: 167:localizations 164: 159: 157: 153: 149: 148:empty product 145: 141: 121: 118: 115: 112: 109: 89: 86: 83: 80: 73: 58: 55: 52: 45: 44: 43: 41: 38: 34: 31: 27: 23: 19: 502:expanding it 491: 476: 470: 448: 435: 423: 416:M. F. Atiyah 398: 389: 380: 371: 328: 324: 316: 312: 307: 303: 278: 273: 251: 245: 241: 237: 215: 205: 201: 197: 193: 189: 181: 177: 173: 171: 160: 139: 137: 39: 32: 25: 21: 15: 264:the set of 257:the set of 158:of a ring. 541:Categories 467:Serge Lang 410:References 297:Properties 290:factorials 268:in a ring; 261:of a ring; 180:is called 176:of a ring 323:A subset 302:An ideal 182:saturated 172:A subset 152:submonoid 119:∈ 87:∈ 56:∈ 447:(1974), 346:See also 250:, where 234:the set 212:Examples 186:divisors 102:for all 471:Algebra 461:0345945 204:are in 28:) is a 459:  248:, ...} 192:is in 156:monoid 144:closed 30:subset 492:This 363:Notes 333:union 259:units 229:ideal 226:prime 224:of a 208:too. 35:of a 498:stub 418:and 284:the 272:1 + 236:{1, 220:the 200:and 37:ring 24:(or 20:, a 142:is 16:In 543:: 469:, 457:MR 455:, 434:, 422:, 315:\ 244:, 240:, 190:xy 529:e 522:t 515:v 504:. 329:S 325:S 317:P 313:R 308:R 304:P 292:. 281:; 279:I 274:I 252:x 246:x 242:x 238:x 206:S 202:y 198:x 194:S 178:R 174:S 140:S 134:. 122:S 116:y 113:, 110:x 90:S 84:y 81:x 71:, 59:S 53:1 40:R 33:S

Index

abstract algebra
subset
ring
closed
empty product
submonoid
monoid
commutative algebra
localizations
divisors
set-theoretic complement
prime
ideal
units
non-zero-divisors
Jordan–Pólya numbers
factorials
union
Localization of a ring
Right denominator set
M. F. Atiyah
I. G. Macdonald
Introduction to commutative algebra
David Eisenbud
Commutative algebra with a view toward algebraic geometry
Kaplansky, Irving
University of Chicago Press
MR
0345945
Serge Lang

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